Insulator or similar article



FIG. 1 is a front elevational view of an insulator or similar article showing my new design, the rear being identical;

FIG. 2 is a left side elevational view thereof, the right side being identical;

FIG. 3 is a top plan view thereof, the bottom plan view being identical;

FIG. 4 is a front view of a second embodiment of my new design, the rear view being identical;

FIG. 5 is a side elevational view thereof, the opposite side being identical;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top plan view thereof. 

The ornamental design for an insulator or similar article, as shown and described. 